Edwaed e



(No Model.)-

B. R. BURNS.

\HOMI-NYMILL.

vPatented Oct. 4,1881.

nlmwmnuml'nmulmlmzcm UNITED STATES PATENT OFF E.

EDWARD R. BURNS, OF INDIANAPOLIS, INDIANA, ASSlGNOR TO HIMSELF ANDSINKER DAVIS 81; 00., OF SAME PLACE.

HOMlNY-MILL.

SPECIFICATION forming part of Letters Patent No. 247,882, dated October4, 1881.

Application filed March 8, 1881. (No model.)

To all whom it may concern:

Be it known that I, EDWARD R'. BURNS, a citizen of the United States,residing at Indianapolis, in the county of Marion and State of Indiana,have invented a new and useful Improvement in Hominy-Mills, of which thefollowing is a specification.

My invention relates to improvements in hominy-mills in whichbeater-knives of a peculiar construction are attached to lugs formed onlongitudinal plates, said plates being attached to a wooden cylindermounted on ametallic shaft, all of which operate in conjunction with acylindrical shell having a hopper above, a discharge-door at one side ofthe bottom and a screen on the other side of the bottom of thecylindrical shell; and the objectsof myinvention are, first, toprovide abeater-knife with a shank below for bolting it to 'the lugs of the ahopper above, a removable screen at one side,

and a discharge-door at the other side; and, fourth, to providefacilities for regulating the feed and operating thedischarge-door.These objects I accomplish by the mechanism illustrated in theaccompauyin g drawings, in which-- 7 Figure 1 represents a frontelevation of the mill. Fig.2 is an end view with the endofthecylindrical shell partiallybroken awayto show the beater-knives insideand thefeedingdevice in hopper. Fig. 3 is atop view of a portion of thecylindrical shell, showing the feed-hopper and cut-off slide and itsoperating mechanism. Fig. 4. is a side view of the revolving cylinder,showing the beater-knives attached to their respective cross-lugs on themetallic longitudinal bars,which are, in turn,attached to the woodencylinder. Fig.5 is an end view of Fig. 4. Fig. 6 is a plan view of oneof the beater-knives with shank for bolting it to the lugs of thelongitudinal bars and diverging cutting-edges; and Fig. 7 is aperspective view of a portion of one of the longitudinal bars, showingthe construction of the cross-lugs. to which the beater-knives arebolted.

Arepresents the cylindrical shell of the mill,

which has closed ends and is securely fastened by bolts at each end tothe legs J J. The upper central portion of the legs J J are providedwith boxes D D,in which the revolving cylindershaft 0 operates. Theupper rear quarter of the cylindrical shell A is furnished with ahopper,B,the floor of which is inclined,

as shown in Fig. 2, and provided with a cutoff slide,L,which .isoperated to increase or diminish the amount of corn fed to the shell Aby the rod 0 and lever F. The rod 6 has'one end secured in the lug O ofthe slide L, and its other end attached the rear end of the lever F, andthe lever F is pivoted to 'the lug E, as shown. in Figs. 1, 2, and 3. y

The lowerrear quarter ofthecylindrical shell A is provided with adetachable screen,.M, which extends longitudinally thelength of theshell. The lower front quarter of the cylindrical shellAis provided witha door, K,which also extends the whole length of the shell. This door isprovided with hinge-lugs m m, which are pivoted to the hinge-lugs n n onthe shell 7 A, as shown in Fig. 1.

The tie-rods G G extend from end to end of the machine and pass throughboth legs J J, where they are made fast by their respective nuts. shellA, is supported in lugs a a, and one end of the link b is pivoted onsaid rod between said lugs. This link 1) extends downward, and its otherend is pivoted to theleverl at :v. The rear end of the lever I is alsopivoted to the 85 fork of the lug H, which; is cast on or attached tothe door K. The lever I and linkb are used for opening or closing thedoor K, as required.

The shaft G is mounted in the boxes D Dof the frame-legs J J, andisprovided with a cyl- 9:) inder, of wood, N, which extends the wholelength of the shell on the inside. This cylinder has four longitudinalflat faces or grooves, in which the longitudinal bars 0 are secured byscrews 11, passing through the holes o. 5

These longitudinal bars 0 have at regular dis tances apart lugs f. Theselugs f arearranged, at right angles to the bar, and each lug is providedon one side with arib, p, for supporting the rear edge of thebeater-knives. Each lug f is provided with a hole, 8, for the bolts r topass through in securing the beater-knives to the lugs.

The beater-knives are flat plates of steel cut The front rod, G, nearthe center of the to a pattern similar to that shown in Fig. 6- that is,the base of the knife has a shank, P, with a hole, 1", for the bolt 1'to be inserted in for securing the knife to the lugs f.

The knife part proper is shown at P, the on tting-edges of which are notground to a knifeedge, but are left perfectly sq uaro, as at w w. Thesesquare cutting-edges diverge from the shank P to the periphery oftheknife, with an angle similar to that shown in Fig.6. The objeet ofmaking the beater-knives of this shape is topreventtheknife-edges fromthrowing the corn against the inner walls of the shell and to draw thecorn toward the revolving eylinderN.

The diverging edgesw w of thebeater-knives, by being flat, present twosharp corners to act on the corn, and as these corners become rounded bywear they are simply ground again perfectly squarethat is, the face ofthe knife is ground at right angles to the sides, but still divergesfrom the shank to the periphery. When one edge of the beater-knives areworn to near the center of the knives, or worn so much as to destroy theutility of the diverging edge at that side, then the bolts 1' areremoved and the knife reversed, thus presenting a new diverging edge ofthe knite't'or further use.

It will be observed that it the cylinder N revolves in the direction ofthe arrow y, Fig. 5, the beater-knives are strengthened by thebacking-ribs on thelugs f, against which one edge of the shank of thebeater-knives abuts when bolted fast to said lugs.

What I claim as new, and desire to secure by Letters Patent, is-- 1. Incombination with a beater-knife with shank P, having a hole, 1", and thehead P, with straight cutting-edges ww, diverging from the base of theshank P to its periphery, the

longitudinal bar 0, with cross-lugsf, said lugs having a projectingrib,p, atone side, and hole 8, for the bolt 1', to be inserted,substantially as shown and described.

2. In combination with a beater-knife with shank P, havingabolt-hole, r,and a head,P, with straightcntting-edges w w, diverging from the shankto the periphery of the knife, the longitudinal bar 0, with lugsf,having ribsp and holes 8 for the bolts 1', the wooden cylinder N, andshaft (3, all substantially as shown and described.

3. In combination with the revolving cylinder N, having bars 0, withlugsf, ribs p, and holes 8, and the beater-knives P P, with hole 1* inthe shank, and diverging cutting-edgesw w, the cylindrical shell A, withhopper B, cutofl' slide L, and lever F, the screen M, and door K,allconstructed and arranged to operate substantially as shown anddescribed.

In testimony whereof Ihave signed my name to this specification in thepresence of two subscribing witnesses.

EDWARD R. BURNS.

Witnesses:

G. H. BENNETT, E. O. FRINK.

